CN106894279A - Mixing slurry paper technology - Google Patents
Mixing slurry paper technology Download PDFInfo
- Publication number
- CN106894279A CN106894279A CN201710091053.2A CN201710091053A CN106894279A CN 106894279 A CN106894279 A CN 106894279A CN 201710091053 A CN201710091053 A CN 201710091053A CN 106894279 A CN106894279 A CN 106894279A
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- CN
- China
- Prior art keywords
- mixing slurry
- paper technology
- modified
- modified fibre
- content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of mixing slurry paper technology, it comprises the following steps：The modified fibre that carboxyl-content is 0.06~1.5mmol/g is provided；Mixing slurry is prepared using the modified fibre, in the mixing slurry, the content of the modified fibre is the 1%~100% of fiber oven dry stock；And manufactured paper with pulp paper using the mixing slurry.Compared with prior art, mixing slurry paper technology provided by the present invention has good filler retention.
Description
Technical field
The present invention relates to a kind of mixing slurry paper technology, more particularly to a kind of can effectively improve the mixing slurry that filler is kept
Paper technology.
Background technology
It is substantial amounts of inorganic in order to reduce paper production cost and improve printing performance in modern mixing slurry paper technology
Filler is added in paste system.The poor ability of filler is kept due to natural plant fibre itself, in order to realize filler
Keep, it will usually the retention agents such as acrylamide, starch are added in paper pulp.
However, surface charge performance smaller for particle diameters such as PCC (winnofil) is come close to neutral filler grain
Say, adding in paper pulp will be compared with GCC (grinding carbonic acid to keeping for filler by the way of the retention agents such as acrylamide, starch
Calcium), kaolin (kaolin) etc. it is poor..
Therefore, how the filler grain that the particle diameters such as PCC are smaller, surface charge performance approaches neutrality is more effectively improved
Retention be one of current industry institute question of common concern.
The content of the invention
In view of this, in conventional hybrid slurry paper technology using on the basis of Microparticle Retention System, then one kind is provided can be effective
The mixing slurry paper technology of raising/additional fillers retention performance is actually necessary.
A kind of mixing slurry paper technology, it comprises the following steps：It is the modified of 0.08~1.5mmol/g to provide carboxyl-content
Fiber；Mixing slurry is prepared using the modified fibre, in the mixing slurry, the content of the modified fibre is fiber oven dry stock
2%~100%；And manufactured paper with pulp paper using the mixing slurry.
In the mixing slurry, it is characterised in that：The carboxyl-content of the modified fibre is 0.25~0.6mmol/g.
In the mixing slurry, it is characterised in that：In the mixing slurry, the content of the modified fibre is fiber over dry
The 15%~50% of slurry.
In the mixing slurry, it is characterised in that：In the mixing slurry, the content of the modified fibre is fiber over dry
The 25%~40% of slurry.
Compared with prior art, mixing slurry paper technology provided by the present invention by using carboxyl-content be 0.06~
The modified fibre of 1.5mmol/g, preferably 0.15~0.5mmol/g is used as manufacturing paper with pulp some or all of main fibre of paper
Use, the carboxyl functional group being rich in using modified fibre surface promotes the swollen of fiber, increase fiber and fiber, fiber and fill out
Adhesion between material, forms more fine and close fibrous reticular structure, by the mechanical retention and carboxyl functional group of this network structure
Ionization, keeping for filler can be increased, realize the high-filling amount of paper.
Specific embodiment
The mixing slurry paper technology that embodiment of the present invention is provided, it comprises the following steps：
The modified fibre that carboxyl-content is 0.08~1.5mmol/g is provided；
Mixing slurry is prepared using the modified fibre, in the mixing slurry, the content of the modified fibre is that fiber is exhausted
The 2%~100% of dry pulp；And
Manufactured paper with pulp paper using the mixing slurry.
Preferably, the carboxyl-content of the modified fibre is 0.15~0.5mmol/g.
Preferably, in the mixing slurry, the content of the modified fibre is the 10%~50% of fiber oven dry stock.
Further, in the mixing slurry, the content of the modified fibre is the 20%~40% of fiber oven dry stock.
Preferably, in the mixing slurry, the addition of filler is the 1%~80% of fiber oven dry stock.
Further, in the mixing slurry, the addition of filler is the 20%~60% of fiber oven dry stock.
In the present embodiment, the carboxyl-content is that the modified fibre of 0.06~1.5mmol/g is aoxidized using TEMPO
System is modified obtained to carry out carboxylated to string.
In the present invention, the string refers mainly to softwood, broadleaf, grass and other plant fiber materials.
In the present embodiment, preferably softwood and broadleaf fibrous raw material are used as the modified string of carboxylated.
In the present embodiment, in the TEMPO oxidation systems, mainly urged comprising catalyst, oxidant and auxiliary
Three kinds of materials of agent, wherein, catalyst is TEMPO or derivatives thereof, and oxidant may be selected hypochlorite, chlorite, chlorine high
One or more in hydrochlorate, hydrogen peroxide, chlorine dioxide, iodide, bromide may be selected for cocatalyst or theirs is mixed
Compound.
In present embodiment, there is the primary hydroxyl by using TEMPO oxidation systems to cellulosic molecule C6 height to select
The characteristic of selecting property oxidation, can be carboxyl by the primary hydroxy group of cellulosic molecule C6, so as in the cellulose of string
Surface forms substantial amounts of carboxyl.
It should be noted that because the cellulose in string is polyol, in its macromolecular chain each
It (is respectively two secondary hydroxyls positioned at C2, C3 and one primary positioned at C6 to have three active hydroxyls on glucose basic ring
Hydroxyl).In general, the oxidation reaction of the various multi-forms of cellulose mostly occurs on these three hydroxyls, different hydroxyls
Base can occur different oxidation reactions, wherein the reaction that oxidation generation carboxyl may occur mainly includes：(1) primary hydroxyl of C6
Aldehyde radical is oxidized to, and continues to be oxidized to carboxyl；(2) the reproducibility radical oxidation in chain end link is into carboxyl；(3) C2, C3
Two secondary hydroxy oxidations into aldehyde radical, and continue to be oxidized to carboxyl.
Because in the present invention, its main purpose is to carry out carboxylated to string to be modified, to obtain containing with carboxyl
It is 0.06~1.5mmol/g to measure, and preferred carboxyl-content is the modified fibre of 0.15~0.5mmol/g, therefore, in the present invention
In, the string is carried out carboxylated it is modified during, be not limited in entering the primary hydroxyl of cellulosic molecule C6
Row carboxylated is modified, the difference of the reaction principle according to the oxidation system for being used, the secondary hydroxyl of C2, C3 in cellulosic molecule
Can be oxidized in the primary hydroxyl and cellulosic molecule of base, C6 be modified as the other positions of carboxyl can be as this step
In can select carry out the modified position of carboxylated.
Therefore, in the present invention, modified the used oxidation system of carboxylated is carried out to string and is not limited in this
The TEMPO oxidation systems that implementation method is used, according to different oxidation mechanisms, in the present invention, carboxylic are carried out to string
Baseization be modified used oxidation system can be：Non-selective oxidation system, it includes sodium hypochlorite, hydrogen peroxide, over cure
At least one in the oxidant that acid etc. can simultaneously be aoxidized to the primary hydroxyl and secondary hydroxyl on cellulose；Or can
The oxidizer system being selectively oxidized to the secondary hydroxyl of cellulose, it includes at least one in periodic acid, periodates；
The oxidizer system that can be selectively oxidized to the primary hydroxyl of cellulose is can also be, it is except TEMPO series nitrogen epoxides
Outside class oxidation system, also including hypochlorite oxidation's system, NO2 and N2O4 serial nitrogen oxide type oxidation system, comprising bromic acid
The oxidation system of sodium, sodium chlorate and sodium chlorite.As long as enable to the carboxyl-content of modified fiber for 0.06~
1.5mmol/g, preferably 0.15~0.5mmol/g.
Compared with prior art, mixing slurry paper technology provided by the present invention by using carboxyl-content be 0.06~
The modified fibre of 1.5mmol/g, preferably 0.15~0.5mmol/g is used as manufacturing paper with pulp some or all of main fibre of paper
Use, the carboxyl functional group being rich in using modified fibre surface promotes the swollen of fiber, increase fiber and fiber, fiber and fill out
Adhesion between material, forms more fine and close fibrous reticular structure, by the mechanical retention and carboxyl functional group of this network structure
Ionization, keeping for filler can be increased, realize the high-filling amount of paper.
Claims (9)
1. a kind of mixing slurry paper technology, it comprises the following steps：The modified fibre that carboxyl-content is 0.08~1.5mmol/g is provided
Dimension；Mixing slurry is prepared using the modified fibre, in the mixing slurry, the content of the modified fibre is fiber oven dry stock
2%~100%；And manufactured paper with pulp paper using the mixing slurry.
2. mixing slurry paper technology as claimed in claim 1, it is characterised in that：The carboxyl-content of the modified fibre is 0.25
~0.6mmol/g.
3. mixing slurry paper technology as claimed in claim 1, it is characterised in that：In the mixing slurry, the modified fibre
Content for fiber oven dry stock 15%~50%.
4. mixing slurry paper technology as claimed in claim 1, it is characterised in that：In the mixing slurry, the modified fibre
Content for fiber oven dry stock 25%~40%.
5. mixing slurry paper technology as claimed in claim 1, it is characterised in that：Contain filler in the mixing slurry, it is described to fill out
The addition of material is the 2%~80% of fiber oven dry stock.
6. mixing slurry paper technology as claimed in claim 1, it is characterised in that：The modified fibre is using TEMPO series
To carry out to string, carboxylated is modified to be obtained nitrogen epoxide class oxidation system.
7. mixing slurry paper technology as claimed in claim 1, it is characterised in that：The modified fibre is using can be to plant
The non-selective oxidation system that the primary hydroxyl and secondary hydroxyl of fiber are aoxidized simultaneously is modified to carry out carboxylated to string
Obtain afterwards.
8. mixing slurry paper technology as claimed in claim 7, it is characterised in that：The non-selective oxidation system includes time chlorine
At least one in sour sodium, hydrogen peroxide and persulfate.
9. mixing slurry paper technology as claimed in claim 1, it is characterised in that：The modified fibre is to use selective oxidation
To carry out to string, carboxylated is modified to be obtained system, and the selective oxidation system is included to the string
The oxidant that oxidizer system that secondary hydroxyl is selectively oxidized and the primary hydroxyl to string are selectively oxidized
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710091053.2A CN106894279A (en) | 2017-02-20 | 2017-02-20 | Mixing slurry paper technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710091053.2A CN106894279A (en) | 2017-02-20 | 2017-02-20 | Mixing slurry paper technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106894279A true CN106894279A (en) | 2017-06-27 |
Family
ID=59185729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710091053.2A Pending CN106894279A (en) | 2017-02-20 | 2017-02-20 | Mixing slurry paper technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110341A (en) * | 2022-06-28 | 2022-09-27 | 华南理工大学 | Recycled paper and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379494B1 (en) * | 1999-03-19 | 2002-04-30 | Weyerhaeuser Company | Method of making carboxylated cellulose fibers and products of the method |
| CN101772517A (en) * | 2007-08-10 | 2010-07-07 | 陶氏环球技术公司 | The cellulosic nanoparticle of mild oxidation |
| CN102666987A (en) * | 2009-11-04 | 2012-09-12 | 凯米罗总公司 | Process for production of paper |
| CN104099803A (en) * | 2013-04-15 | 2014-10-15 | 金东纸业（江苏）股份有限公司 | Papermaking technology |
-
2017
- 2017-02-20 CN CN201710091053.2A patent/CN106894279A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379494B1 (en) * | 1999-03-19 | 2002-04-30 | Weyerhaeuser Company | Method of making carboxylated cellulose fibers and products of the method |
| CN101772517A (en) * | 2007-08-10 | 2010-07-07 | 陶氏环球技术公司 | The cellulosic nanoparticle of mild oxidation |
| CN102666987A (en) * | 2009-11-04 | 2012-09-12 | 凯米罗总公司 | Process for production of paper |
| CN104099803A (en) * | 2013-04-15 | 2014-10-15 | 金东纸业（江苏）股份有限公司 | Papermaking technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110341A (en) * | 2022-06-28 | 2022-09-27 | 华南理工大学 | Recycled paper and preparation method and application thereof |
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Application publication date: 20170627 |